/*
 * Copyright (c) 2021 Touchlab
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
 * in compliance with the License. You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software distributed under the License
 * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
 * or implied. See the License for the specific language governing permissions and limitations under
 * the License.
 */

package co.touchlab.kermit

/**
 * Config that can be updated. The global Logger instance needs mutable state. Most logging use cases do not, however
 * there are some situations that may. Mutable config is less performant because state needs to be thread safe, which
 * means volatile in the jvm and atomic in native. Each log call must access mutable, cross-thread state.
 */
interface MutableLoggerConfig : LoggerConfig {
    override var minSeverity: Severity
    override var logWriterList: List<LogWriter>
}

expect fun mutableLoggerConfigInit(logWriters: List<LogWriter>): MutableLoggerConfig
fun mutableLoggerConfigInit(vararg logWriters: LogWriter, minSeverity: Severity = DEFAULT_MIN_SEVERITY): MutableLoggerConfig =
    mutableLoggerConfigInit(logWriters.toList()).also { it.minSeverity = minSeverity }
